Maintenance and repair of electrical equipment

Why should electrical equipment be maintained?

If you look at the statistics on the causes of accidents and fires, this issue will immediately become irrelevant, and the importance of maintaining electrical networks and installations in fully working order is undeniable. Regular maintenance of electrical installations by competent specialists solves this problem, reducing the risk of short circuits and other accidents to a minimum.

Our advantages

• qualified specialists
• efficiency
• guarantee of quality of work performed

Maintenance Options

There are two main types of electrical equipment maintenance: scheduled and unscheduled. Scheduled service can be called basic: it is necessary to maintain the uninterrupted operation of a properly functioning installation and includes:

• checking switchgears, fastenings, electrical wires;
• inspection of protective coatings, insulation;
• checking the integrity and serviceability of the connected electrical wiring;
• inspection of places where wires pass through floors and walls;
• control of compliance with real loads;
• cleaning contacts;
• checking the serviceability and reliability of frames;
• tightening fasteners, etc.

Performed regularly according to the established schedule.

Unscheduled maintenance of electrical installations and electrical networks is the repair and elimination of problems that have already arisen, preventive actions to eliminate the possibility of a recurrence. It includes:

• partial disassembly of the body and mechanisms;
• repair of damaged parts of the electrical installation, replacement of defective parts;
• getting rid of sagging networks, restoring insulation;
• cleaning lamp fittings from dust;
• diagnostics of grounding and grounding;
• testing of dielectric protective equipment;
• insulation resistance measurement;
• thermal imaging examination, etc.

Unscheduled maintenance of electrical equipment is not performed regularly, but only at the request of the client.

Licenses and certificates

Rules for servicing low-voltage equipment

For stable operation of electrical equipment, it is necessary to carry out regular maintenance. The procedure helps to increase the service life of equipment, ensure safe and efficient operation of devices, and promptly identify and replace failed elements.

Basic definitions

Low-voltage equipment refers to all electrical devices specializing in the processing, conversion, distribution, transmission and consumption of electric current with a rated voltage of 50-1000 V. The category includes all electrical appliances operating in a low-voltage network:

• circuit breakers;
• converters, voltage stabilizers;
• electric meters;
• switching and protective devices.

The maintenance frequency determines the time intervals at which preventive measures must be performed. The frequency depends on the purpose of the equipment and the characteristics of the environment in which it is operated.

Restrictions on low-voltage devices, created to protect property, health and life of people, to prevent incorrect actions in relation to devices, are established by technical regulations.

Maintenance frequency for different types of equipment

The frequency and duration of maintenance and scheduled repairs of electrical devices are established by the manufacturer and are regulated by current standards and rules for the operation of equipment. Maintenance may also be required based on the results of diagnostics of the device’s performance.

Maintenance intervals for different types of equipment:

• circuit breakers - 1 month;
• magnetic starters - 1 month;
• control buttons - 1 month;
• lamps LN and LL - 3 months;
• shields - 1.5 months;
• charging station generators - 15 days;
• heaters - 3 months;
• electrical wiring - 6 months;
• cable - 4 months;
• aboveground part of grounding devices - 3 months.

When launching new electrical equipment, the frequency of planned activities is determined taking into account the recommendations in the manufacturer’s instructions. The enterprise must draw up annual maintenance schedules.

List of maintenance work

Maintenance of an electrical device includes a number of planned preventive measures:

• Identifying and troubleshooting electrical circuit problems.
• Inspection and maintenance, troubleshooting of electrical equipment.
• Checking instrument readings, heating of devices and networks, condition of insulation, lubricants and cooling materials.
• Checking compliance with safety requirements during equipment operation.
• Monitoring the condition and identifying faults in grounding devices, their restoration.
• Constant monitoring of the functioning of electrical appliances, regular cleaning, purging.

When checking the condition of devices, modern diagnostic tools are used to promptly identify breakdowns of parts and components at the initial stages, and prevent emergency situations. If breakdowns are discovered during scheduled work, parts are repaired, which is also part of the maintenance.

Purpose and regulations of maintenance

Maintenance of low-voltage equipment is carried out with the aim of preventing, promptly identifying and eliminating damage to internal elements, components, and malfunctions of electrical devices. Proper maintenance helps reduce equipment repair costs and reduces downtime. Inspection activities can be planned (regulated) and unscheduled.

Routine inspection is carried out for installations with prescribed modes and maintenance regulations. These regulations require regular implementation of preventive measures to maintain equipment in good condition. This approach ensures the maximum percentage of device readiness, although it is the most expensive. Expenses often turn out to be unjustified, since in most cases, during routine inspections, no breakdowns are found and repairs are not needed.

The list of works during regulated maintenance is determined in accordance with the equipment documentation after a certain period of time approved by the regulations. To carry out planned activities, the operation of electrical appliances is suspended, actions are carried out according to the schedule. Detected changes in the functioning of devices are documented: special logs and inspection cards are kept. Maintenance of low-voltage equipment is a set of important preventive measures that helps to detect problems in the operation of the device before they begin to affect its performance. Scheduled work extends the service life of equipment, reduces repair costs, and minimizes the risk of accidents.

The frequency and procedure for maintenance are established individually, depending on the type of electrical equipment and its operating conditions. Activities are carried out in accordance with technical regulations within the time limits established by the schedule, the results are recorded in special documents.

Contract for maintenance of electrical installations

A contract for maintenance of electrical equipment is concluded for a long period, and not for each maintenance case, and allows all work related to electrical installations and their serviceability to be performed by trained specialists. Such an agreement includes several very specific points:

• maintenance of transformer substations and distribution points;
• monitoring the condition of electrical panels (main switchboard, distribution switchboard, ShchS, ShchO, ShchU), electrical devices;
• checking grounding, power and lighting networks;
• checking lamps and fixtures;
• maintenance of cable lines.

conclusions

Thus, even in the case of an old power system, there are opportunities for safe operation with gradual updating of failing electrical equipment.
To do this, you need to apply appropriate modern solutions and ensure regular maintenance and repairs. See also:

Cold shrink cable sleeves: a complete guide!

Thermal imaging inspection of electrical equipment: a complete guide!

Partial discharges in insulation: methods, instruments, diagnostics

Advantages of our company

You do not need to have your own staff of electrical engineering specialists in your enterprise (office, restaurant, store, etc.). There is no need to support them, train them and be responsible for their work. After all, you can enter into an agreement with our company, and WE will fully service your electrical equipment and monitor its proper condition. We work with equipment of any complexity, we have the necessary permits for this type of activity, our specialists are highly qualified and have extensive experience.

Main activities:

• Current repair of electrical equipment after commissioning;
• Scheduled preventive maintenance of electrical equipment according to the approved annual schedule;
• 24/7 service;
• Prompt departure of the repair team to the scene of the emergency;
• Own interaction with network companies;
• Collection, preparation, maintenance and restoration of documentation on the operation and technological connection of an electrical installation;
• Preparation of complex power supply schemes for the facility in the process of changing the network;
• Own commission for testing knowledge on electrical safety;
• Own electrical laboratory.

Prices for servicing electrical installations and electrical equipment

The cost of maintenance of electrical installations depends on the scope of work and the area of ​​the facility, and is therefore set individually. The information in the price list section will help you determine the approximate cost of services. For a more specific determination of the cost, you can call us and get detailed advice, as well as arrange a meeting, inspection of the property, and conclusion of an agreement.

You can contact representatives of the electrical laboratory and call specialists by phone (495) 172-48-46, email, or online chat. Fill out applications, each request is registered and processed within 5 minutes. Maintenance services are provided on a day and time convenient for the customer.

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